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' i atten rates. atntffse.

DAVID L. eonnN,` l0F P E'Nsaeonag,FLORIDA., Letters Patent No. 71,984, dotted December 10, 1,867'.

IMPROVED BOAT-DETAGHING TAGKLE.

. TO ALL -WHOM IT MAY CONCERN: Y

Be it known that I, DAVID L. COHEN, of Pensacola, in the county of -Escambia, and State of Florida, have invented a new and improved Boat-Detaching Apparatus; and I do hereby declare 'the following to be a. full, clear, and exact description of the same, reference being had to the'accomp'anying drawings forming part of ths specification7 and in whichn V `Figure 1 is a longitudinal vertical section through the centre of a boat provided with myapp'aratus.

Figure 3 is a cross-section of the block B, showing the shape of a cross-section of its dove-tail groove.

Figure 2 is a erossfseetion of the clamping-bloclcC, which ruins in the dove-tail groove.

Similar letters of reference indicate corresponding parts in the several igures.

y v lfhe object of this invention is to furnish a device with which a ships boat can be readily shipped `or launched at sea, without danger of capsizing or fouling.

In order that others skilled in the art to which my inventionhppertains may be enabled to make vand'useA i the same, I will proceed to describe it in detail. f

In the drawings, F is a vertical lever, pivotcd at e, so as to rock fore and aft inthe boat. ApitmamD, running to the bow, is hinged to the lever F above the pivot, and another, D, running to the stern, is hinged to the lever below the pivot. At their ends these pitmen are hinged to a. block, C, the cross-section of which is shown in figs. and and.whieh-slidcsvforward und backward in a (love-tail groove in the upper side of a stout block, B, fastened-.to the boat at the' foot of thc'stem and stern-post. The end wall ,of the grooves 4is not perpendicular, but inclined, frs-shown in fig. l, for the purpose of receiving the end of a. notched rod or bar, a. 'lhe notch on the bar is fitted so that a shoulder on Vthe bar below the notch fits into the recess undertheincline of the wall ofl the groove, so that when once in position, as shown in iig. 1, the bar a cannot be drawn verticallyupward without having its lower end forced backward from the end wall of the groove. The sliding block C, when the lever F is 'in a verticalposition, {its firmly against the baci; of the bar a, and contines its shoulder l under the projecting wall, When the, lever is in this position, therefore, the bars apa cannot be disengaged from the position in which 'they are thus clamped. But when the top ofthe lever is thrown backward both blocks C C are thrown back, and both Ybars a a are instantly disengaged at the same moment. The boat is V`hoisted up and suspended by chains orropes, hooked into rings a a', attached to the upper end of the bars aa. The lever F may be clamped in position by any suitable device. A simple arrangement for the purpose is shown in the drawings, consisting of a. bar, G, lying alongside of the lever, with a. gain in one'side of it, which fits around the lever and holds lit in a vertical position. The bar G may be pvoted at' one end, and a pin or projection may hold the other end inthe proper position. f By removing the pin, or lifting the bar above the projection, and throwing it back from the lever, the latter is fixen, and the boat detaches itself by its own weight.

` Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is ih. The combination of the notched bars a a with the grooved blocks B B,- the sliding-blocks C, pitmen D Dl and lever F, substantiallyas and for the purpose described. i

. v DAVID LOPEZ COHEN; Witnesses:

ROB. B. S. Haners, J. S. WHITING. 

